1212020222 has 16 divisors (see below), whose sum is σ = 2187104640. Its totient is φ = 492098328.

The previous prime is 1212020221. The next prime is 1212020263. The reversal of 1212020222 is 2220202121.

It is a super-3 number, since 3×1212020222³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1212020197 and 1212020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212020221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2277968 + ... + 2278499.

It is an arithmetic number, because the mean of its divisors is an integer number (136694040).

Almost surely, 2^1212020222 is an apocalyptic number.

1212020222 is a deficient number, since it is larger than the sum of its proper divisors (975084418).

1212020222 is a wasteful number, since it uses less digits than its factorization.

1212020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4556495.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1212020222 is about 34814.0808007335. The cubic root of 1212020222 is about 1066.1949519483.

Adding to 1212020222 its reverse (2220202121), we get a palindrome (3432222343).

The spelling of 1212020222 in words is "one billion, two hundred twelve million, twenty thousand, two hundred twenty-two".